Variables | All casesb | AC | SCC | |||
---|---|---|---|---|---|---|
 | No. of cases | ASR | No. of cases | ASR | No. of cases | ASR |
SO2 concentration (ppb) | ||||||
   ≤ 3.74 | 854 | 37.35 | 513 | 22.98 | 70 | 2.93 |
   3.74 - 5.52 | 1209 | 40.20 | 785 | 26.25 | 114 | 3.71 |
   5.52 - 7.75 | 1280 | 39.96 | 834 | 26.09 | 127 | 3.99 |
   > 7.75 | 1390 | 41.12 | 843 | 25.23 | 145 | 4.37 |
CO concentration (ppm) | ||||||
   ≤ 0.55 | 574 | 38.35 | 336 | 22.84 | 64 | 4.29 |
   0.55 - 0.72 | 736 | 36.33 | 466 | 23.29 | 65 | 3.36 |
   0.72 - 0.88 | 1338 | 39.81 | 825 | 24.84 | 132 | 4.12 |
   > 0.88 | 2085 | 41.85 | 1348 | 27.31 | 195 | 3.72 |
NO2 concentration (ppb) | ||||||
   ≤ 17.09 | 619 | 38.02 | 364 | 22.70 | 62 | 3.90 |
   17.09 - 22.18 | 900 | 38.92 | 554 | 24.47 | 91 | 3.85 |
   22.18 - 27.63 | 1176 | 39.24 | 732 | 22.46 | 124 | 4.19 |
   > 27.63 | 2038 | 41.21 | 1325 | 27.08 | 179 | 3.60 |
NO concentration (ppb) | ||||||
   ≤ 5.29 | 726 | 38.43 | 430 | 23.53 | 74 | 3.96 |
   5.29 - 8.18 | 727 | 37.99 | 433 | 22.93 | 81 | 4.30 |
   8.18 - 12.37 | 1199 | 38.15 | 765 | 24.51 | 121 | 3.82 |
   > 12.37 | 2081 | 42.27 | 1347 | 27.65 | 180 | 3.66 |
O3 concentration (ppb) | ||||||
   ≤ 19.18 | 1932 | 43.08 | 1252 | 28.39 | 174 | 3.85 |
   19.18 - 22.01 | 1208 | 37.13 | 761 | 23.45 | 123 | 3.87 |
   22.01 - 25.33 | 822 | 37.93 | 502 | 23.31 | 81 | 3.74 |
   > 25.33 | 771 | 39.83 | 460 | 24.54 | 78 | 3.96 |
PM10 concentration (μg/m3) | ||||||
   ≤ 50.04 | 1302 | 39.28 | 814 | 25.06 | 109 | 3.22 |
   50.04 - 61.23 | 1362 | 40.83 | 884 | 26.67 | 126 | 3.72 |
   61.23 - 76.30 | 1168 | 42.88 | 737 | 27.35 | 119 | 4.42 |
   > 76.30 | 901 | 36.23 | 540 | 22.09 | 102 | 4.16 |